The crusty residue found on the underside of the toilet seat/ bowl. Usually caused from the anal explosion that follows a night of consuming large amounts of cheap beer.
Dan drank a case of bush ice last night and this morning there was butt splatter all over the toilet.
by BG Thomas May 4, 2008
Get the butt splattermug. by ramsey mckirk November 15, 2010
Get the poopy butt splattersmug. by Pedro2010 January 23, 2009
Get the Splatter Buttmug.